generate URLs for all demos and use those to run the tests

docs/src/demos/Guide/GettingStarted/VModel/index.spec.js

@@ -1,6 +1,6 @@
-context('/examples/v-model', () => {
+context('/demos/Examples/VModel', () => {
   before(() => {
-    cy.visit('/examples/v-model')
+    cy.visit('/demos/Examples/VModel')
   })
 
   // TODO: Write tests

docs/src/demos/Guide/StoreContent/ExportHTML/index.spec.js

@@ -1,6 +1,6 @@
-context('/guide/store-content', () => {
+context('/demos/Guide/StoreContent/ExportHTML', () => {
   before(() => {
-    cy.visit('/guide/store-content')
+    cy.visit('/demos/Guide/StoreContent/ExportHTML')
   })
 
   beforeEach(() => {

docs/src/demos/Guide/StoreContent/ExportJSON/index.spec.js

@@ -1,6 +1,6 @@
-context('/guide/store-content', () => {
+context('/demos/Guide/StoreContent/ExportJSON', () => {
   before(() => {
-    cy.visit('/guide/store-content')
+    cy.visit('/demos/Guide/StoreContent/ExportJSON')
   })
 
   beforeEach(() => {

docs/src/demos/Guide/StoreContent/ReadOnly/index.spec.js

@@ -1,6 +1,6 @@
-context('/guide/store-content', () => {
+context('/demos/Guide/StoreContent/ReadOnly', () => {
   beforeEach(() => {
-    cy.visit('/guide/store-content')
+    cy.visit('/demos/Guide/StoreContent/ReadOnly')
   })
 
   it.skip('should be read-only', () => {
@@ -13,7 +13,7 @@ context('/guide/store-content', () => {
     })
   })
 
-  it.skip('should be editable', () => {
+  it('should be editable', () => {
     cy.get('.ProseMirror').then(([{ editor }]) => {
       cy.get('#editable').check()